Finding the Fourth Proportional to 810,523,612.34, 1,118,523,541.58 and 439,245,643.71
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Solution
The fourth proportional to 810,523,612.34, 1,118,523,541.58 and 439,245,643.71 is: 606,159,506.70
Step by Step Solution
- Step 1: Write the proportion equation
810,523,612.34 : 1,118,523,541.58 = 439,245,643.71 : x - Step 2: Convert to fraction form
810,523,612.34/1,118,523,541.58 = 439,245,643.71/x - Step 3: Cross multiply
810,523,612.34x = 1,118,523,541.58 × 439,245,643.71 - Step 4: Simplify right side
810,523,612.34x = 491,306,593,026,096,000 - Step 5: Solve for x
x = 491,306,593,026,096,000/810,523,612.34 - Step 6: Final answer
x = 606,159,506.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.